I've been thinking about love

The famous Brazilian poet and composer Vinicius de Morais wrote about love:
"... That is not immortal, since it is flame
But that is infinite while it lasts. "(*)
The love we have for our children is different from that love.
The love for them is not flame as flame goes out.
It is thus immortal and eternal because lasts forever.
And also infinite because it is very deep.
It is a true and unconditional love.
Love, one that resists all
That kind of love the Son of God taught us.
A love like that only increases and never finds barriers
neither time nor space.
And so we continue living and loving.
As for me I have used the following recipe:
When I miss him, I speak with him
I close my eyes and imagine
I can touch him and give him a hug
When I miss him I always see a bird
I always find some in my way and I think that is my son
I see my beloved son in everything
Because if I see God in everything, there I also find my son,
Who lives with Him now. But not far ...
Here ... Very close to me

(*) Vinicius de Moraes, "Poetics Anthology," Publisher's Author, Rio de Janeiro, 1960, p. 96 in Sonnet Loyalty.