In the temple

Enter gently

Do not walk in suddenly. A soft sound as you enter, such as the temple bell, announces you instead of intruding.

It is old courtesy to let a house know you are coming before you step in. In the temple that can be the bell by the door or a quiet word of the Lord’s name. The Nectar of Devotion, quoting the Varāha Purāṇa, lists entering without making some sound first among the offenses to avoid.

Whose teaching
Varāha Purāṇa
Where it is taught
The Nectar of Devotion, ch. 8 (offenses from the Varāha Purāṇa)
Source
Vedabase
Enter gently · HariHariBol