I feel it’s kind of obvious to most of us, then why this discussion? This is to reinforce what you already know. Positive reinforcement is a must. Classical yogic texts call it Satsang(holy company.) You meet up with like-minded positive people and you discuss things which matter.You are not worried about repeating things which are vital because as you keep discussing them you are making the programming inside subconscious stronger for the positivity!
We have all observed that clothes, floors and utensils gain dirt and slug if not cleansed regularly. Cleaning needs an effort. Gaining dirt is obvious and natural. It’s the way nature works. Clean a mirror fully and keep it in the sanctum sanctorum of your house–after a few days there will be dirt on it. You don’t have to do any effort to make things dirty–gaining impurity is the very nature of things. It takes an effort to cleanse things and purify them. Evolutionary energy is always trying to lift us upward in terms of consciousness but owing to the chaos and mayhem in our daily lives we scarcely find time to hearken. We don’t co-operate with it and hence all the trouble. As material objects gain impurities naturally so does our mind. If you don’t do anything positive or negative you will find that negativity will increase on its own. The environment contains many sources of negative vibrations which trigger reactions in you. Once negative chain reactions have been triggered they keep on accumulating into something gigantic unless opposite positive forces are activated.
As happens with material objects–unless you clean them regularly you will find that cleaning them needs the excessive effort. Is it the amount of effort needed which would have been required had you kept cleaning everyday? No. Suppose you need 1 unit of energy to clean your mirror everyday. Now you don’t clean it for 10 days. On the 11th day you decide to clean it again. Now do you think it will get cleansed if you use 1 unit of energy? No, answer is simple. Now what about 10 or 11 units of energy as 11th day has approached? It might be slightly puzzling but answer is no. The 11 days of accumulation will need much more energy to clean it now. There have occurred many bonds and cohesion among impurity particles and they are stronger than those which you used to encounter on a day-to-day basis. Thus you can’t clean the mirror easily on 11th day.
The amount of energy needed is one thing and the effort it causes you is another. When you were cleaning it everyday it needed very little fraction of your time. You were able to manage it easily. But now you will need a great amount of time and you have to allocate it separately. It will also cause exhaustion and you won’t be able to give time to other activities in your routine. Meditation follows same logic. If you meditate everyday the dirt on mind gets cleansed everyday. Even if it’s a vast storehouse of negative impressions it gets cleansed gradually and eventually you have a flame burning brightly with love. But if you don’t meditate regularly the dirt gets accumulated and eventually when you are forced by circumstances or disorders to take care of negativity by meditation you find it overwhelming. It’s just too much to take care of. Hence meditate regularly and it will be a cakewalk.