[2] Initially, the authenticity of the gods Lel and Polel was not questioned, as evidenced by their popularity among major Polish writers such as Ignacy Krasicki, Juliusz Słowacki and Stanisław Wyspiański.

Aleksander Brückner, who was one of the first researchers to tackle the topic of the Polish pantheon, categorically rejected the authenticity of Lel and Polel.

[3][4] Despite Brückner's significant achievements, many modern researchers accuse him of a hypercritical or even pseudoscientific approach to the subject of the Polish pantheon.

[7][8][9] Following the abandonment of Brückner's hypercritical attitude and the discovery of twin figures on the island of Fischerinsel, modern researchers are more confident about the authenticity of their cult.

[10] According to Andrzej Szyjewski, Lelum and Polelum could have been zodiacal twins,[12][a] and in the opinion Alexander Gieysztor they brought happiness, which may be reflected in faith in the magical power of a double ear [of grain].