The word angel is thought to be derived from the Greek word "Angelos" which means "messenger" In the Christian, Muslim, Jewish and other theologies an angel can be one who acts as the messenger, attendant or agent of god.
Throughout the bible it is generally seen that the will of god is usually imparted or carried out by angels.
Angels are spirits without bodies, who posses superior intelligence, gigantic strength and surpassing holiness, angels are composed of ethereal matter, thus allowing them to take on whichever physical form best suits their immediate needs.
They enjoy an intimate relationship to god as his special adopted children, contemplating, loving and praising him in heaven, some of them are frequently sent as messengers to men from on high.
Angels are the essence of love and joy and stem from the heart of god/goddess.
Now, you will ask why god/goddess? is god a female or male? He is neither and both at the same time, what is referred to us as god is just the supreme source of the whole existence. A spirit of such a magnitude, so unconceivable that has no sex and could be both at the same time if it chooses to. So the reference to god/goddess was just to emphasize that however you choose to call upon him/her it is of no importance.
Angels are countless in their number and flock around the universe in their millions. Angels are dedicated to serve the needs of all free will entitles, so that you may experience the same level of unconditional love as they do. Each angel carries out its assigned task without any hint of hesitation as they take great pleasure in offering their loving wisdom and guidance. Everyone has angels around them constantly, without exception and they are eager and excited at the opportunity to communicate with you.
Angels were created with one purpose, the purpose to love and to serve all without condition, in doing so angels hold a focus of pure love throughout the universe and are therefore able to set up a resonance for the vibration of pure love, wherever it is needed. You on the other hand are a free will entity. That means that you have chosen to develop your ability to exist with unconditional love by gaining much experience through many lifetimes and many varied forms of existence. The angels have been created to counterbalance any energies or actions that move in the opposite direction to love, so that you will eventually remember your true essence. In Christian religion and theology an angel can also be a member of the lowest order of the ninefold celestial hierarchy, this is a ranking which comes directly below archangels. a fallen angel is often classed as a devil, like Satan himself, whereas a guardian angel is classed as a human guide or protector. Angels are commonly represented by a figure with wings and wearing a long white robe. They are also sometimes depicted wearing halos which emanate from the angels "head" in a glorious wreath of light serving a symbol of divine wisdom. Angels do not die or age, they are immortal, created by god and existing since the creation. Generally they are accepted as being the guardians of souls. Although angels are generally divine, they have been shown to be fallible and prone to sin, particularly pride; one of the most notable examples of this being Satan and his fallen army.
Angels can take on a variety of different forms In Ezekiel 1:16-21, Isaiati 6:1-3 and throughout the book revelation they are described as taking on not only the appearance of men by many fantastical forms. A notable example was the angel who took on the appearance of a burning bush. The image of an angel with wings tends to symbolize the spiritual nature of the being, the purpose of the wings being to allow the angel to travel through the ether as well as being a symbol of divine authority.
Angels are everywhere and you can ask for angels to assist you with anything you wish, there is no limit! In fact, if no angel is available for a particular task, an angel is created as an answer to your wish or prayer, just for you. Yes, the you and the divine create angels on request, Angels are god/goddess making a personal visit, but in a scaled down form, however the love that they have is just as immeasurable remember, therefore they cannot assist us in our lives unless we ask them too, so, don't forget to ask. Here it is again, god/goddess and the same question arises, angels appear to us with many forms and shapes, many times the qualities of an angel are so delicate, that they choose female face characteristics. An angel will appear to us with the form that is best for us.
A spirit guide is also a free will entity, but has evolved over what you would consider to be a long time. They are part of a group consciousness of beings that have evolved beyond form into beings of pure light and essence. Although angelic in nature, spirit guides are a free will entity and therefore choose their path of further growth. Spirit guides are master teachers and are able to travel and navigate through many, many levels of existence, they are here to guide and teach when you are willing to listen. They are always communicating to you through your thoughts, music, your environment, wherever they need to be in order to get your attention.
So whenever you need their help, remember they are always with you, like I said before, ask them to help as they are there to please.