"[I] argued a loooonnnnnng time with my co-authors  about what we would sing in this video," he said. "At the end, we decide that it has to be as naïve as an opening song can be and ambiguous as possible, for the fun. As you may have understand, it's Morty who is singing and he is expressing his passionate relations with Rick, despite of all the pain and the difficult moments he is living because of him."

Here are what the lyrics mean:

Before i met you,

I thought i was a normal kid

Now, i found dark and dirty living way

Though i thought you hated me

But you always protected me

If you hurt me, i know now it's because you wanted me to become stronger

No matter live, no matter die, can i always love you?

Tell me, no age for love

It's warm inside do you feel it,

I have lot of love for you

I will be always beside you

Do you feel it,

Come on, grandpa let's go