You can learn all the elements, names of all the stars, names of every apostle or the 99 names of Allah. You can take Sigma6 courses, do multiple MBAs, finish a doctorate and write a book...
You can do everything you think is enough, but nothing will prepare a person to fall in love. there is no preparation for falling in love. It might last a month, a week or a day after which you will never be the same.
You will have everything you think you know changed, in an instant, in a smile, in a sparkle of sunlight in her eyes. In a falling leaf, in an argument that normally you would win hands down - but you don't want to beat her in an argument - you want to lose. You want to lose.
In a song you normally wouldn't like, in a colour you wouldn't paint with.