Teacher and Guru

 Difference between Teacher and Guru

teachers teaching subjects enabling us to pass exams, excel in the subjects, clarifying our doubts also are removing the ignorance in the chosen subjects

but

human being needs such a guidance that which can lead to enlightenment ,

here guru helps

 the word Guru. ‘Gu’ signifies darkness and ‘Ru’ denotes that which dispels darkness or ignorance (Gukaaro Andhakaarasya , Rukarasthannirodhakaha).

Basically he teaches how to go beyond the mind,  

Since ‘’manam eva manushyaanaam kaaranam bandha mokshah’’ mind is the cause for bondage and liberation’’

Thru the sadhana of meditation etc taught by guru one gains high purity in body mind nervous system rendering one to live blissful life with success

Hence along with education/career tasks, the spiritual knowledge and practice are needed