Castles Made of Sand (Jimi Hendrix cover) Lyrics

Lyric discussion by Bldsgrsxmg 

Cover art for Castles Made of Sand (Jimi Hendrix cover) lyrics by Red Hot Chili Peppers

I just think it means nothing lasts forever be it a great fling, a dream of being a warrior or a life of misery. Because you never know when that sea is going to come take your castle away. So basically its a metaphor for life and death.