Chetana ek jatil aur bahupahluviy vishay hai, jiske kai arth aur paribhashaen hain. Aam taur par, iska tatparya hai:

• Jagrukta (Awareness): Apne aap aur apne aas-paas ke vatavaran ke prati jagruk hona. Ismein sanson, bhavnaon, vicharon aur aaspas ki sthitiyon ka gyan shaamil hai.
• Anubhav (Experience): Apne antrik aur bahari sansarik anubhavon ko grahan karne aur mahsus karne ki kshamata.
• Aatm-gyan (Self-awareness): Apni khud ki astitva, pahchan aur vicharon ke prati jagruk hona. Ismein apni kamiyon aur khoobiyon ko samajhna shaamil hai.
• Bodh (Cognition): Sochne, yaad rakhne, seekhne aur samasyaon ko hal karne ki kshamata. Chetana bodhnatmak prakriyaon se judi hoti hai.

Dusre shabdon mein, chetana ek vyakti ki duniya aur khud ko mahsus karne aur samajhne ki kshamata hai. Yah ek antarik anubhav hai jo vyaktigat aur vastugat donon ho sakta hai.

Chetana ke adhyayan mein darshan, manovigyan aur tantrika vigyan jaise kai kshetron shaamil hain.

Chetana ki paribhashaen:

• Darshan mein: Chetana ko aksar man aur sharir ke beech sambandh se juda mana jata hai. Kuchh darshanikon ka manna hai ki chetana ek bhautik prakriya hai, jabki anya ka manna hai ki yah ek abhautik entiti hai.
• Manovigyan mein: Chetana ko aam taur par manasik prakriyaon ke ek range ke roop mein paribhashit kiya jata hai, jis mein jagrukta, dhyan, smriti aur bhasha shaamil hain.
• Tantrika vigyan mein: Chetana ko dimag mein hone wali tantrika gatividhi se juda mana jata hai. Shodhakarta dimag ke un vishesh kshetron aur prakriyaon ko samajhne ki koshish kar rahe hain jo chetana ke liye jimmedar hain.

Chetana ek rahasyamay vishay bana hua hai, lekin yah hamare jeevan ka ek mahatvapoorn hissa hai. Yah hamein duniya ka anubhav karne, sochanne aur mahsus karne ki anumati deta hai.