All bones that you collect should be sacrificed on the Chaos Altar, however it is a dangerous method, so don't take anything apart from the bones that you want to OSRS gold sacrifice. This location is among the most Player Active zones on Runescape, and it's found on 38 level of Wilderness. It usually means that gamers from much higher levels can strike you. It would be smart to store them at the bank and perform the Altar running once you've enough of these bones stored, but it's up to you in the event that you want to risk the equipment.
Another option of instruction is through the Slayer. Throughout your Slayer tasks, you can amass many Ensouled Monster Heads, which is reanimated in the Dark Altar. Killing reanimated creatures provides large chunks of Prayer experience, but it is a less consistent method than regular bones farming, and that means that you can't count on getting sufficient Ensouled Heads to get from level 1 to 99.
Runecrafting calls for an enormous amount of Pure Essence for leveling functions, which is obtained through the mining and creature drops. The first method is simple, but not effective, as you'd have spent way too long mining rocks that hardly give any Mining experience. It is why you wish to concentrate on killing Monster, which not just drops Essence in large amounts but also other valuable items that you might benefit from. Higher-level players can additionally farm Zulrah boss for endgame drops and Buy RS gold large quantities of Pure Essence.