Bhagwad Gita
Chapter 8, Verse 14
अनन्यचेताः सततं यो मां स्मरति नित्यशः।
तस्याहं सुलभः पार्थ नित्ययुक्तस्य योगिनः।।8.14।।
For one who remembers Me without deviation, I am easy to obtain, O son of Prtha, because of his constant engagement in devotional service.