You are a leaf staying in my mind.

[曼殊沙華]

【You are a leaf staying in my mind.】

You are a leaf flying in the wind.
When the spring come and the wind puff,
You fall gently in my mind accidentally.
And become a scripture in my life.

I once thought
You are the beautiful wonder in the world,
whom I have been looking for.
I once thought
I am the one could accompany you tenderly,
whom you have been waiting for.
You turn out to be a relic fell
from the heaven land.
To come tell me
the dependent originating arising
and ending about love affair.

You are a leaf staying in my mind.
Staying in my mind lightly as a feather.
I move toward the far shore more lithely.
I don't worry over
a distant journey anymore.


【你是停留在我心中的葉】

你是隨風飛絮的葉
在春之際　在風起時
偶然飄落我的心間
成為我生命的經典

曾經以為
你就是我尋求的　在這人世間的驚豔
曾經以為
我就是你等待的　可以陪伴你的柔美
原來　你是天上墜落的舍利子
來教我參愛情的緣起緣滅

你是停留在我心中的葉
輕如羽　停留心間
我更輕盈地走在往彼岸的路
我不再畏懼路途遙遠艱苦

[若爾。諾爾]

Leaves are symbolic of a life cycle (and a cycle of love), being born in the spring and then falling, and dying, in the fall. But the leaf here lives on, in the mind, as a memory, and death is defied.

So this is a nice use of the figure to describe a love, a lifetime of loving, and its cycle.

Below is my bold attempt for the English version, it doesn't mean there is any problem with your version. Rather, it is FYI only:

You are a leaf flying in the wind.
When the spring comes and the wind blows,
You fall gently, accidentally in my mind,
And become a scripture in my life.

I once thought
You are the beautiful wonder of the world,
for whom I have been searching.
I once thought
I am the one who could tenderly accompany you,
the one for whom you have been waiting.
You turned out to be a relic fallen
from heaven.
To come tell me
the dependent originating arising
and ending of a love affair.

You are a leaf staying in my mind.
Staying in my mind lightly as a feather.
I move toward the far shore more lithely.
I don't worry about
a distant journey anymore.

I once thought
I am the one who could tenderly accompany you tenderly,
the one for whom you have been waiting for.
You turned out to be a relic fell fallen
from the heaven land.
To come tell me
the dependent originating arising
and ending about of a love affair.

You are a leaf staying in my mind.
Staying in my mind lightly as a feather.
I move toward the far shore more lithely.
I don't worry over about
a distant journey anymore.

[曼殊沙華]

Thank you for your reading and suggestions of English version.
Your suggestions could be helpful for me to express my feelings in different words.