Who defines love better than St. Paul in his epistle to the Corinthians 13:
4 Love is patient, love is kind and is not jealous; love does not brag and is not arrogant,
5 does not act unbecomingly; it does not seek its own, is not provoked, does not take into account a wrong suffered,
6 does not rejoice in unrighteousness, but rejoices with the truth;
7 bears all things, believes all things, hopes all things, endures all things.
8 Love never fails....
If a person loves another, the happiness of the beloved comes before that of the lover. It is, perhaps, the most unselfish of all emotions that a person feels.
Love is a bond, a connection with someone. I love my granddaughters unconditionally. I would give up my life for them. But the greatest love is the love Jesus Christ had at the Crucifixon scene. He proved the ultimate sacrifice of love. No greater love has ever existed. The unconditional love Jesus Christ shared is the ultimate love. None other love compares.
When you are in love, you will know what love is. There is no way to exactly define it, because it is different with each person and each relationship. There are different meanings of love. To me, love means you miss a person when you are not together. Love is caring more about another person's needs than your own. Love is wanting to make the world a better place because that person is in it. Love is NOT possession. That is obsession, not love, and it leads to destruction.
The beginning stages of love are often more acute than the later, long-lasting love. In the beginning, you may find it hard to sleep or even eat. There is a giddiness and nervous agitation when you are anticipating seeing the object of your desire. You will probably have trouble concentrating on anything else. It can even be emotionally painful to be apart. Eventually, this infatuation will burn itself out. Either you are left with a real and lasting love, or you are left to realize there is nothing more with this person than infatuation. Real and lasting love is just as powerful but perhaps less forceful. The desire to be near the other person and the dislike of being apart is still present but perhaps less intense. There is certainly a feeling that if this person were no longer in your life you would be incomplete.
If I ever find something that is harder to properly define than love, I will let you know.
When you love someone and you have done so for a long time, the main thing about love is that you can't imagine your life without the other person. That doesn't mean that you would literally die without them, but it does mean that you think your life would be very incomplete without them.
As far as how to know you're in love at the early stages, it's very hard. At that point, it is very hard to distinguish love from infatuation. All I can say is that it's very intense and it seems to dominate your entire life while it's happening. All you can think about is the other person.
Someone said to me that;
Love is a fixed emotion that conquers other 'puny' emotions.
Also, a 'FaceBook Fact' (that is subject to skeptism);
After four months, psychologists claim that you do no longer have a crush with an individual, but you are in love with this person.
While you can look at love in two perspectives, one scientifically and the other psychologically, it ultimately means one thing: an attraction towards an individual. The motives behind this desire are usually varying, from the looks and general appearance of the individual, or the personal qualities in the personality of the individual.
But what is love to me? Love is a strong emotional connection to someone that one cares for. Each definition varies from person to person, of course.