I appreciate it's alot to take in and with all this comes more questions, but they should hopefully all be answered by the time we are done. Now enough of the potential. It's back to basics on how sage mode works. As you've learnt over the years you have your own life force your charka that you can control but this also exists in nature, plants, trees, grass and it's known as Natural energy. Sage mode is you drawing on this Natural energy combining it with your chakra to create an even more powerful chakra. Sage chakra. This is what i did before to take care of the warrior toad. There are many variants of Sage mode, all copies of the toad sage mode if you ask me. But lets not get into that. First you need to be able to feel this chakra, it's always there but i bet you never noticed it did you? Well that's where the toad village comes in. Follow me.
With that Jiraiya walked over to the fountain of he sacred oil stopping infront of it.
This is a special oil that is known to only the toads that when it touches you will help you feel and draw in the Natural energy. Sounds simple right? But if you move, draw in too much and don't balance it with your own chakra, you will turn to a stone toad statue and die. With great power comes great risk. I personal take on toad like features when using sage mode which as you saw before is worth it. I also have the help of ma and pa, they were the masters that taught me. But we shall go into their teachings later. You will sit, perfectly still here and i'll place a drop of the sage oil on you, when i do you will feel a surge of foreign chakra, control it, and match it with yours to balance it out in your body. If you fail at this you will die... are you sure you're ready?