Each sub-brain loves its its own way.
How can you understand what you cannot articulate?
And how can you articulate ... feelings ... for a part of the brain that has no words?
When you talk about colors we can point and compare, decide to agree on what a word means, then use that word-meaning-a-certain-color to share other concepts. This is impossible ... well, this is very difficult when speaking about love.
We cannot point at an emotion and debate if what I feel is what you feel.
Love has different meanings in different contexts, different times, different ages, different parts of the brain. Even when we do communicate, seven-eighths of our message impinges on sub-brains to which words are meaningless.
OK, I'm answering the wrong question. "Can you UNDERSTAND the power of love?"
No.
I can appreciate its power. Understand? No.
Eros? Philia? Storge? Pragma? Ludus? Mania? Meraki? Philautia? Agape? Platonic? Xenia?
Communicate to someone else what it is? There's many attempts, some truly great, but none definitive enough to shut people up about it.
Scuse me, but you see, back in old napoli, that's amoooooooooooooooreeeeeee.
Tale as old time etc