Can we reach deep meditative states without teachers? I read that the guidance of a teacher is &quot;highly recommended because not all meditation experiences are spiritually skillful&quot; and that

&quot;It's also very common for solo practitioners to believe they have reached a deep meditative state when in fact they have barely scratched the surface. They may feel the rapture of the first dhyana, for example, and assume that's enlightenment. A good teacher will guide your meditative technique and keep you from sticking anywhere.&quot;
Developing Samadhi

Can we take a deep and authentic look, and potentially reach enlightenment without a teacher?
thanks
A teacher is generally required but difficult to find. The Pali suttas say:


  Tathāgatappaveditassa dhammavinayassa desetā puggalo dullabho lokasmiṃ
  
  Rare in the word is a person who teaches the teaching and training
  proclaimed by a Realized One.
  
  AN 6.96


For an individual with a keen intellect, this 'teacher' could simply be the Pali suttas. However, even in this case, the discernment of what the Path is must be acutely discerned. Generally, even an intelligent person needs a 'rare teacher' to verbally guide through the true meaning of the Pali suttas.