Shulchan Arukh, Orach Chayim Siman 5
Can copy this into an AI, or connect the whole library to your assistant. For deeper learning, you can directly use the original seforim, sites, and apps.
יכוין בברכות פירוש המלות כשיזכיר השם יכוין פירוש קריאתו באדנות שהוא אדון הכל ויכוין בכתיבתו ביו"ד ה"א שהיה והוה ויהיה ובהזכירו אלהים יכוין שהוא תקיף בעל היכולת ובעל הכחות כולם:
One should have in mind the meaning of the words when reciting blessings. When articulating the Name (ie. י-ה-ו-ה), one should have in mind the meaning of the Name as it is pronounced - Adon-ai (א-ד-ו-נ-י): that He is Lord over all. And one should have in mind [the meaning of the Name] as it is spelled with a Yud-Hei (ie. י-ה-ו-ה) that He Was (ה-י-ה), Is (ה-ו-ה), and Will Be (י-ה-י-ה). And when articulating the Name Elo-him (א-ל-ה-י-ם), have in mind that He is Strong, Omnipotent, and Master of all powers.