Pretend you have a super tasty apple. Now you want that same apple you need to get the original tree. To get this you would take a clone which is a exact replica otherwise the seed is crossbreed probably a stable apple tree in terms of seed but cloning taking an exact replica. Basically used for quality control in any plant species. Tomatoes, berries, fruit trees can all be cloned and anybody can do it nature even does it on its own in the right circumstances. Cloning is used in modern marijuana culture to keep strains pure aswell as female only. And seed growth is wasted the growth. No time wasted growing something with inferior genetics.. Some pots are good for ADD some good for pain med. others are just relaxing and euphoric. I noticed some people shouldn't smoke a certain type of weed depending on there situation. If you are lazy don't smoke indica.. And if your mind is super crazy sometime sativas don't help that aspect you be spacing out brah...
Also look up super cropping more on that subject. More love you give your plants the more they will love you back.
To clone all you do is cut a stem of the plant that contains at least three internodes on the piece you cut. Create a long surface for roots to take place by slicing the end at 45 degrees or so at the end of the stem dip in rooting hormone or put it straight into water if that's your thing. Gotta keep it 100 percent humid so that the roots can develope. The plant uses the water taken in by the leafs to create the roots. You don't need more than fluorescent light bulds so you don't burn the plants up. Good luck. After that feed the soil which will in turn feed the plant to many people skip the soil process and feed straight to the plant which is inferior to natures process. Add some co2 and call it good. If you have bug problems use neem oil