וַיִּקְרָ֤א עֵלִי֙ אֶת־שְׁמוּאֵ֔ל וַיֹּ֖אמֶר שְׁמוּאֵ֣ל בְּנִ֑י וַיֹּ֖אמֶר הִנֵּֽנִי׃
Then Eli called Samuel, and said: ‘Samuel, my son.’ And he said: ‘Here am I.’
Read kabbalistic (mystical) interpretation of I Samuel 3:16: and classical mystical sources.