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.