There are 6 Shrines throughout Spiritfarer. Each requires 2 Obols (the currency you unlock for completing a spirit's journey), 12 in total, to unlock and gifts you a new ability. You will need to progress deep into the game to unlock all 6 of these.
0:00 Hummingberg (Ability: Double Jump)
0:39 Furogawa Island (Ability: Glide)
1:43 Nordweiler (Ability: Zipline)
2:19 Oxbury (Ability: Bounce)
3:09 Greymist Peaks (Ability: Dash)
5:11 Hidden Shrine (Ability: Light Burst)