In case the LyricsTranslate page would disappear, here's what the lyrics mean (widely borrowed from the LT translation):

The voice of my guitar
Wants to sing its joy
To my Mexican homeland
When the morning wakes up

I sing to its volcanoes,
Its meadows and its flowers
Which are like talismans
Of the love amongst my loves

Beautiful and beloved Mexico
Should I die far from you
Let them say I'm asleep
And let them bring me back to you

Let them say I'm asleep
And let them bring me back to you
Beautiful and beloved Mexico
Should I die far from you

Let them bury me in the mountains
At the foot of the maguey/agave groves
And let this soil cover me,
This soil which is a cradle for upright men