Your stones are capturing energy.
They are constantly exchanging energy with the people around them and the environment. That's why it's so important to cleanse them correctly, re-energize them, and program them to attract what you desire.
01 Clean
The first step is to remove the old or dense energy from it.
With palo santo or sage you can smoke your stones and crystals. Let the smoke go, clean also your mind while doing this. Do this as much as you feel like, your gut will tell you.
02 Recharge
Now your stone needs to recharge its energy. How? With the full moon energy. Let your stone over night receiving the energy of the full moon.
Even better if it can be done with your stone on the earth - they come from there, they recharge from there as well.
03 Intention
Your stone is now ready for you. Sit still with it on your dominant hand, meditate and set your intention. What do you want it to bring to you? Be true with you, believe on its power.